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Fangda Special Steel, formerly known as Nanchang Iron and Steel Plant (Nanchang Iron and Steel Co., Ltd.) founded in 1958, was acquired and restructured by Liaoning Fangda Group in 2009. It is now a full process steel joint venture integrating mining, coking, sintering, ironmaking, steelmaking, and rolling.
This time, Fangda Special Steel introduced three sets of in-situ laser gas analyzers iLAS-700-CO from Shengnuo Instrument, installed in the exhaust pipeline of the hot blast furnace, to analyze the concentration of CO gas in real time, optimize combustion efficiency and ensure environmental emissions. Recently, our after-sales engineers came to the installation site of the equipment to assist in installation and debugging, ensuring its successful production.
project site
We need to avoid areas with turbulent airflow such as flue bends and variable diameter pipes when selecting monitoring points. Priority should be given to setting them at the outlet of the hot blast furnace flue or before and after the exhaust treatment device (such as desulfurization tower, dust collector) to ensure that the sampled gas is representative and the sampled data is authentic.
According to the requirements of the enterprise, the monitoring equipment is required to cover the range of 0-2% CO concentration to meet the monitoring needs of low concentration CO in exhaust gas. We ensure long-term stable operation of the equipment in outdoor environments through zero drift and range drift tests.
At present, all three sets of equipment have been installed and debugged, and after debugging, various indicators have reached the standard, and CO monitoring data is stable.
Product Introduction
The iLAS series in-situ laser gas analyzer adopts the principle of Tunable Diode Laser Absorption Spectroscopy (TDLAS), which can measure the concentration of specific gases in process gas components, including NH3, HCL, HF, H2S, CH4, O2, CO, CO2, etc. This gas analyzer has the characteristics of high sensitivity, fast response speed, no background gas interference, non-contact optical measurement, etc. It can be applied to gas emission monitoring, process control and other scenarios in many industrial fields, providing reliable assurance for real-time and accurate reflection of gas concentration changes.
Advantages of in-situ measurement method
Direct analysis of process gases without any changes in sampling loss
Measure the average concentration of pipeline cross-section, which is closer to the real working conditions
• Fast real-time response, providing real gas concentration changes
Non contact optical measurement, suitable for high temperature, high pressure, and high dust conditions
• Customizable development for measurement processes
The in-situ laser gas analyzer of Shengnuo Instrument provides a reliable solution for monitoring CO in the exhaust gas of the hot blast furnace in this project. The equipment adopts advanced TDLAS technology, which has the characteristics of high precision, high sensitivity, and fast response speed. It can monitor the concentration changes of CO in real time and stably upload the data to the on-site control platform for timely recording, providing important data support for the control of the process section and the energy efficiency control of the enterprise.
